Technical information

Vitorond 200, VD2A Series Service
5354 789 - 01
6
Safety
Important Regulatory and Safety Requirements
Working on the equipment
The installation, adjustment, service, and maintenance
of this boiler must be performed by a licensed professional
heating contractor who is qualified and experienced in the
installation, service, and maintenance of hot water boilers.
There are no user serviceable parts on the boiler, burners,
or control.
Note: Please carefully read this manual prior to attempting
installation. Any warranty is null and void if these
instructions are not followed.
For information regarding other Viessmann System
Technology componentry, please reference
documentation of the respective product.
Viessmann offers frequent installation and service
seminars to familiarize our partners with our
products. Please inquire.
Ensure main power supply to equipment, the heating
system, and all external controls has been deactivated.
Close main gas supply valve. Take precautions in all
instances to avoid accidental activation of power during
service work.
Note: The completeness and functionality of field supplied
electrical controls and components must be verified
by the heating contractor. This includes low water
cut-offs, flow switches (if used), staging controls,
pumps, motorized valves, air vents, thermostats, etc.
Instructing the system user
The installer of the system is responsible to ensure the
system operator/ultimate owner is made familiar with the
functioning of the system, its activation, and its shut-down.
Note: The following topics must be covered:
Proper system operation sequence.
Explain the equipment as well as the need for
combustion air.
Demonstrate an emergency shut-down, what to do
and what not.
Explain that there is no substitute for proper
maintenance to help ensure safe operation.
Initial start-up
Initial start-up must be performed by a qualified heating
contractor. Completion of the Maintenance Record by the
heating contractor is also required.
Note: The Maintenance Record is located on page 20
of this manual.
Technical literature
Literature for the Vitorond 200 VD2A* boiler:
- Technical Data Manual
- Installation Instructions
- Service Instructions
- Operating Instructions and User’s Information Manual
- Instructions of other Viessmann products utilized with
this installation
- Installation codes mentioned in this manual
Additional applicable literature:
- Viessmann boiler controls manuals
Note: Leave all literature at the installation site and advise
the system operator/ultimate owner where the
literature can be found. Contact Viessmann for
additional copies.